Attaching device



G. S. ANDRES ATTACHING DEVICE.

Filed 001;. e, 1919 2 sheets-sheet 1 May 15, 1923. 'E,455,51@

G. s. ANDRES ATTACHING DiavIcz Filed Oct. 6 1919 j 2 Sheets-Sheet 2 Patented May 15;, 1923.

GEORGE SAMUEL ANDRES, OF CHICAGO, ILLINOIS.

ATTACHING DEVICE.

Application filed October 6, 1919. Serial No. 328,871.

To all whom it may concern:

Be it known that I. GEORGE SAMUEL ANDREs, a citizen of the resident of the city of Chicago, in the county of Cook and State of Illinois,'have invented certain new and useful Improvements in Attaching Devices; and I dohereby declare that the'following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the numerals of reference marked thereon, which form a part of this specification.

This invention relates to attaching devices, and although not restricted to such use is particularly adapted for use in securing together the two halves of the crank case and other parts of an internal combustion engine.

Heretofore such parts have been connected by means of bolts passed through lugs on the two parts. This is not only a complicated method of attachment, but also one which requires considerable time to attach and detach.

' One of the objects, therefore, of the present invention is to provide a simple and readily connected and disconnected form of attachment.

Another object of the invention is to provide a simple form of shackle for releasably connecting two parts together.

Other and further important objects of this invention will be apparent from the disclosures in the specification and drawings.

The invention (in a. preferred form) is illustrated in the drawings and hereinafter more fully described.

On the drawings:

Figure l is a side view of an internal combustion engine embodying the features of the present invention.

Figure 2 is a plan view of the lower half of the crank-case of the same.

Figure 3 is an'end view of the lower half of the crank-case, taken on the line 3-3 of Figure 2.

Figure 4 is an end view of the engine shown in Figure 1.

Figure 5 is an enlarged end view of the lower half of the United States, and a cran line 5'5 of Figure 2. Figure 6 is an enla 6-6 of Figure l.

k'case taken on the rged section on the line As shown in the drawings: i The invention is illustrated in connection with an internal combustion engine having a cylinder head 1, cylinder 2, upper-crank case 3 and lowercrank case 4.

As shown, the two halves of the crank case are connected bymeans of shackles 5.

6 connected to each shackle is Each shackleis pivotally mounted in a the lower crank case pivotally mounted a adapted to engage a shoulder 8 on upper crank case 3. his shoulder is prefn to the circle described by the pawl turning about the shackle when gaging position. With the pawl and shackle without producing any or any parts associated The two parts of the the latter is in ensuch a construction may 'be brought into and out of engagement with the shoulder 9 strain in these parts therewith. crank case are kept in alinement and a tight joint maintained therebetween by providing a groove'l0 in the upper crankcase 3, of the lower crank case packing 11 is arranged into which the edge projects. A strip of v at the bottom of the groove to seal the joint. I

The method of connecting the cylinder is exactly analogoushead and the cylinder to that ust set forth so in on is unnecessary.

that further descrip- I am aware that numerous details of constructlon may be varledthrough a wide range without departing from the principles of this invention, and I therefore do not purpose limiting the p wise than necessitated b I claim as my inven atent granted othery the prior art. tion:

1. An attaching device including a pivoted shackle, a

pawl pivotally mounted thereon and a boss cast integral with one of the members to be fastened, said pawl having two flat surfaces tangent to circles with e pawl, said surfaces centers at the axis of th a plane tangential 1 10 surfaces lying outside 0 making an angle of approximately ninety degreesand engaging in the locked position with complementary surfaces on the boss.

2. An attaching device including a pivoted shackle, a pawl pivotally mounted thereon, and a boss integral with one of the parts to be fastened, said pawl having two flat surfaces which engage with complementarysurfaces on the boss, the ed e formed by these a line joining the two pivots when in locked position, so as to get an attachment stable even under conditions of excessive vibration. In testimony whereof I have ,hereunto subscribed by name in subscribing witnesses.

GEORGE SAMUEL ANDRES. Witnesses: g RIDsDALE ELLIS, LAWRENCE A. REIBSTEIN.

the presence of two 15 

